### Checklist - [X] 1. If the issue you raised is not a feature but a question, please raise a discussion at https://github.com/sgl-project/sglang/discussions/new/choose Otherwise, it will be closed. - [X] 2. Please use English, otherwise it will be closed. ### Motivation In many use cases, users need to extract or analyze data from the output generated by this tool/project. ### Related resources https://docs.vllm.ai/en/latest/usage/structured_outputs.html#experimental-automatic-parsing-openai-api